Prepare for War on the Horizon!

A United States Army officer who trained pupils at Fort Sill for over 20 years once described the different qualities of the students during the two decades of his tenure. During the 1950's, he observed the students' attitude as being so lax that the instructors had trouble keeping their students awake during their lectures. This drastically changed in the mid 1960's. The students began taking meticulous notes and absorbing every word of instruction. So, what changed?